\contentsline {section}{\numberline {1}实验目的}{2}{section.1}%
\contentsline {section}{\numberline {2}实验设备和器件}{2}{section.2}%
\contentsline {section}{\numberline {3}实验内容}{2}{section.3}%
\contentsline {subsection}{\numberline {3.1}实训步骤}{2}{subsection.3.1}%
\contentsline {subsubsection}{\numberline {3.1.1}step1 界面设计}{2}{subsubsection.3.1.1}%
\contentsline {subsubsection}{\numberline {3.1.2}step2 请求使用相机权限}{2}{subsubsection.3.1.2}%
\contentsline {subsubsection}{\numberline {3.1.3}step3 使用相机应用程序进行拍照}{3}{subsubsection.3.1.3}%
\contentsline {subsubsection}{\numberline {3.1.4}step4 获取缩略图}{3}{subsubsection.3.1.4}%
